<!-- 图表组件 -->
<template>
    <div ref="chart" style="width: 100%; height: 400px;"></div>
</template>

<script>
import * as echarts from 'echarts';

export default {
    name: 'ECharts',
    props: {
        options: {
            type: Object,
            required: true
        }
    },
    mounted() {
        this.chart = echarts.init(this.$refs.chart);
        this.chart.setOption(this.options);
    },
    watch: {
        options: {
            deep: true,
            handler(newOptions) {
                this.chart.setOption(newOptions);
            }
        }
    }
};
</script>